透氢钒基合金膜

Vanadium-based Alloy Membranes for Hydrogen Purification

摘要:

目前工业上分离高纯氢气应用最多的是致密金属膜，尤其是钯银合金膜。钯、银属于贵金属，大规模应用成本高。 钒基合金膜拥有比钯银合金膜更高的透氢率、机械强度和较低的成本，且氢脆抗力较纯钒得到很大提高，成为潜在的替代钯银合金膜的材料之一。 本文综述了钒基合金膜材料的研究现状，催化层对透氢性能的影响以及钒基合金膜的制备方法，并对未来的发展趋势进行了展望。

Abstract:

Dense metallic membranes are primarily used for high-purity hydrogen separation from a mixture of gases, and especially hydrogen-permeable metallic membranes made of palladium-silver alloys being used for industrial application. However, palladium-silver alloy membranes have limited industrial application due to their high cost, and alternative to these and less expensive are non-palladium alloys. Vanadium-based alloy membranes are considered to be one of the most promising metallic membranes due to their higher permeabilities than palladium-silver and greater resistance to embrittlement as compared to pure vanadium. This paper will review metallic membranes permeation mechanism, V-based alloy membrane research status, the effect of catalyst layer on hydrogen-permeability, and vanadium-based alloy membrane fabrication.